I think I got a related issue,
my first attempts of reconnecting failed, then I started to show the log.
reloaded the zigbee integration and tried again and now I found my device.
I think there is room for improvement here.
Device 0xbac3 (e0:79:8d:ff:fe:e0:96:49) left the network
Device 0xbac3 (e0:79:8d:ff:fe:e0:96:49) left the network
Device 0xbac3 (e0:79:8d:ff:fe:e0:96:49) left the network
Device 0x78e6 (e0:79:8d:ff:fe:e0:96:49) joined the network
[0x78e6] Already have endpoints: {0: <zigpy.zdo.ZDO object at 0x7f674bdeb0>, 1: <Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, 2: <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, 242: <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>}
[0x78e6] Initializing endpoints [<Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>]
[0x78e6:1] Discovering endpoint information
[0x78e6:1] Endpoint descriptor already queried
[0x78e6:2] Discovering endpoint information
[0x78e6] Already have endpoints: {0: <zigpy.zdo.ZDO object at 0x7f674bdeb0>, 1: <Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, 2: <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, 242: <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>}
[0x78e6] Initializing endpoints [<Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>]
[0x78e6:1] Discovering endpoint information
[0x78e6:1] Endpoint descriptor already queried
[0x78e6:2] Discovering endpoint information
[0x78e6] Already have endpoints: {0: <zigpy.zdo.ZDO object at 0x7f674bdeb0>, 1: <Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, 2: <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, 242: <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>}
[0x78e6] Initializing endpoints [<Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>]
[0x78e6:1] Discovering endpoint information
[0x78e6:1] Endpoint descriptor already queried
[0x78e6:2] Discovering endpoint information
[0x78e6] Already have endpoints: {0: <zigpy.zdo.ZDO object at 0x7f674bdeb0>, 1: <Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, 2: <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, 242: <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>}
[0x78e6] Initializing endpoints [<Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>]
[0x78e6:1] Discovering endpoint information
[0x78e6:1] Endpoint descriptor already queried
[0x78e6:2] Discovering endpoint information
[0x78e6] Already have endpoints: {0: <zigpy.zdo.ZDO object at 0x7f674bdeb0>, 1: <Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, 2: <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, 242: <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>}
[0x78e6] Initializing endpoints [<Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>]
[0x78e6:1] Discovering endpoint information
[0x78e6:1] Endpoint descriptor already queried
[0x78e6:2] Discovering endpoint information
New device 0x076d (e0:79:8d:ff:fe:e0:96:49) joined the network
[0x076d] Requesting 'Node Descriptor'
[0x076d] Requesting 'Node Descriptor'
[0x076d] Got Node Descriptor: NodeDescriptor(logical_type=<LogicalType.Router: 1>, complex_descriptor_available=0, user_descriptor_available=0, reserved=0, aps_flags=0, frequency_band=<FrequencyBand.Freq2400MHz: 8>, mac_capability_flags=<MACCapabilityFlags.FullFunctionDevice|MainsPowered|RxOnWhenIdle|AllocateAddress: 142>, manufacturer_code=4880, maximum_buffer_size=82, maximum_incoming_transfer_size=82, server_mask=11264, maximum_outgoing_transfer_size=82, descriptor_capability_field=<DescriptorCapability.NONE: 0>, *allocate_address=True, *is_alternate_pan_coordinator=False, *is_coordinator=False, *is_end_device=False, *is_full_function_device=True, *is_mains_powered=True, *is_receiver_on_when_idle=True, *is_router=True, *is_security_capable=False)
[0x076d] Discovering endpoints
[0x076d] Discovered endpoints: [1, 2, 242]
[0x076d] Initializing endpoints [<Endpoint id=1 in=[] out=[] status=<Status.NEW: 0>>, <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>]
[0x076d:1] Discovering endpoint information
[0x076d:1] Discovered endpoint information: SizePrefixedSimpleDescriptor(endpoint=1, profile=260, device_type=8, device_version=1, input_clusters=[0, 3], output_clusters=[3, 25])
[0x076d:2] Discovering endpoint information
[0x076d] Already have endpoints: {0: <zigpy.zdo.ZDO object at 0x7f01c8a510>, 1: <Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, 2: <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, 242: <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>}
[0x076d] Initializing endpoints [<Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, <Endpoint id=2 in=[] out=[] status=<Status.NEW: 0>>, <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>]
[0x076d:1] Discovering endpoint information
[0x076d:1] Endpoint descriptor already queried
[0x076d:2] Discovering endpoint information
[0x076d:2] Discovered endpoint information: SizePrefixedSimpleDescriptor(endpoint=2, profile=260, device_type=2080, device_version=1, input_clusters=[0, 3, 4096], output_clusters=[3, 6, 8, 4096])
[0x076d:242] Discovering endpoint information
[0x076d] Already have endpoints: {0: <zigpy.zdo.ZDO object at 0x7f01c8a510>, 1: <Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, 2: <Endpoint id=2 in=[basic:0x0000, identify:0x0003, lightlink:0x1000] out=[identify:0x0003, on_off:0x0006, level:0x0008, lightlink:0x1000] status=<Status.ZDO_INIT: 1>>, 242: <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>}
[0x076d] Initializing endpoints [<Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, <Endpoint id=2 in=[basic:0x0000, identify:0x0003, lightlink:0x1000] out=[identify:0x0003, on_off:0x0006, level:0x0008, lightlink:0x1000] status=<Status.ZDO_INIT: 1>>, <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>]
[0x076d:1] Discovering endpoint information
[0x076d:1] Endpoint descriptor already queried
[0x076d:2] Discovering endpoint information
[0x076d:2] Endpoint descriptor already queried
[0x076d:242] Discovering endpoint information
[0x076d] Already have endpoints: {0: <zigpy.zdo.ZDO object at 0x7f01c8a510>, 1: <Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, 2: <Endpoint id=2 in=[basic:0x0000, identify:0x0003, lightlink:0x1000] out=[identify:0x0003, on_off:0x0006, level:0x0008, lightlink:0x1000] status=<Status.ZDO_INIT: 1>>, 242: <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>}
[0x076d] Initializing endpoints [<Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>, <Endpoint id=2 in=[basic:0x0000, identify:0x0003, lightlink:0x1000] out=[identify:0x0003, on_off:0x0006, level:0x0008, lightlink:0x1000] status=<Status.ZDO_INIT: 1>>, <Endpoint id=242 in=[] out=[] status=<Status.NEW: 0>>]
[0x076d:1] Discovering endpoint information
[0x076d:1] Endpoint descriptor already queried
[0x076d:2] Discovering endpoint information
[0x076d:2] Endpoint descriptor already queried
[0x076d:242] Discovering endpoint information
[0x076d:242] Discovered endpoint information: SizePrefixedSimpleDescriptor(endpoint=242, profile=41440, device_type=97, device_version=1, input_clusters=[], output_clusters=[33])
[0x076d] Read model 'WG001-Z01' and manufacturer 'AL001' from <Endpoint id=1 in=[basic:0x0000, identify:0x0003] out=[identify:0x0003, ota:0x0019] status=<Status.ZDO_INIT: 1>>
[0x076d] Discovered basic device information for <Device model='WG001-Z01' manuf='AL001' nwk=0x076D ieee=e0:79:8d:ff:fe:e0:96:49 is_initialized=True>
[0x076D:2:0x1000]: Couldn't get list of groups: